I am having a problem using an "application context" with OpenMPI 1.2.4. My invocation of "mpirun" is shown below along with the "--app" file.
Invocation: export LD_LIBRARY_PATH="/usr/local/openmpi-1.2.4/gnu/lib" /usr/local/openmpi-1.2.4/gnu/bin/mpirun --app /my_id/appschema Contents of "--app" file: -np 1 /my_id/Gnu/hello_mpi Ldd of hello_mpi: ldd hello_mpi libm.so.6 => /lib64/tls/libm.so.6 (0x0000002a9566c000) libmpi.so.0 => /usr/local/openmpi-1.2.4/gnu/lib/libmpi.so.0 (0x0000002a957f3000) libopen-rte.so.0 => /usr/local/openmpi-1.2.4 /gnu/lib/libopen-rte.so.0 (0x0000002a9598e000) libopen-pal.so.0 => /usr/local/openmpi-1.2.4 /gnu/lib/libopen-pal.so.0 (0x0000002a95ae9000) libdl.so.2 => /lib64/libdl.so.2 (0x0000002a95c47000) libnsl.so.1 => /lib64/libnsl.so.1 (0x0000002a95d4b000) libutil.so.1 => /lib64/libutil.so.1 (0x0000002a95e62000) libpthread.so.0 => /lib64/tls/libpthread.so.0 (0x0000002a95f65000) libc.so.6 => /lib64/tls/libc.so.6 (0x0000002a9607b000) /lib64/ld-linux-x86-64.so.2 (0x0000002a95556000) Error message: ORTE_ERROR_LOG: Data unpack had inadequate space in file dss/dss_unpack.c at line 90 Any help would be greatly appreciated. Thanks, Pat O'Bryant J.W. (Pat) O'Bryant,Jr. Business Line Infrastructure Technical Systems, HPC Office: 713-431-7022